DE1287825B - - Google Patents
Info
- Publication number
- DE1287825B DE1287825B DENDAT1287825D DE1287825DA DE1287825B DE 1287825 B DE1287825 B DE 1287825B DE NDAT1287825 D DENDAT1287825 D DE NDAT1287825D DE 1287825D A DE1287825D A DE 1287825DA DE 1287825 B DE1287825 B DE 1287825B
- Authority
- DE
- Germany
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
- G01N27/66—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
- H01J41/02—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas
- H01J41/08—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of radioactive substances, e.g. alphatrons
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH26962A CH391331A (de) | 1962-01-10 | 1962-01-10 | Verfahren und Vorrichtung zur elektrischen Feststellung von Aerosolen in Gasen |
| CH117462A CH440764A (de) | 1962-01-10 | 1962-01-31 | Verfahren zum Feststellen von Aerosolen in Gasen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1287825B true DE1287825B (xx) |
Family
ID=25684089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1287825D Pending DE1287825B (xx) | 1962-01-10 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3233100A (xx) |
| CH (1) | CH440764A (xx) |
| DE (1) | DE1287825B (xx) |
| GB (1) | GB1024552A (xx) |
| NL (2) | NL145378B (xx) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH416388A (de) * | 1962-11-19 | 1966-06-30 | Cerberus Ag | Ionisations-Feuermelder |
| US3389250A (en) * | 1964-04-20 | 1968-06-18 | Industrial Nucleonics Corp | Multiple chamiber liquid level probe |
| US3361866A (en) * | 1965-04-09 | 1968-01-02 | Babigan Raymond | Electrical conductor containing an ionizable gas and radioactive material to ionize the gas |
| CH446131A (de) * | 1966-02-22 | 1967-10-31 | Cerberus Ag | Ionisationsfeuermelderanlage |
| FR1568048A (xx) * | 1968-01-19 | 1969-05-23 | ||
| US3946374A (en) * | 1970-08-13 | 1976-03-23 | Sci Systems, Inc. | Rate-of-change combustion and contamination detection device |
| US4185196A (en) * | 1978-01-13 | 1980-01-22 | General Electric Company | Ionization smoke detector having improved stability and sensitivity |
| US4213047A (en) * | 1978-10-25 | 1980-07-15 | General Signal Corporation | Smoke detector having unipolar ionization chamber |
| CN101832968B (zh) * | 2010-04-01 | 2012-03-28 | 郑州光力科技股份有限公司 | β粒子三极电离粉尘传感器 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2972680A (en) * | 1956-04-26 | 1961-02-21 | Ionaire Inc | Ion generator and method |
| NL99411C (xx) * | 1957-01-25 |
-
0
- NL NL286979D patent/NL286979A/xx unknown
- DE DENDAT1287825D patent/DE1287825B/de active Pending
-
1962
- 1962-01-31 CH CH117462A patent/CH440764A/de unknown
- 1962-12-19 NL NL62286979A patent/NL145378B/xx unknown
- 1962-12-20 US US246152A patent/US3233100A/en not_active Expired - Lifetime
-
1963
- 1963-01-10 GB GB1159/63A patent/GB1024552A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH440764A (de) | 1967-07-31 |
| US3233100A (en) | 1966-02-01 |
| NL145378B (nl) | 1975-03-17 |
| GB1024552A (en) | 1966-03-30 |
| NL286979A (xx) | 1900-01-01 |